A rebuttal: http://isteve.blogspot.com/2009/03/bubbles-and-sex.html True, but it's still a great article.
Also, his argument (insinuation, really) that female consumer spending in the US was a driving force of the sub-prime crisis completely is completely tangential to Lewis's argument, which is about male financial workers. (To my mind, both arguments seem unlikely and rather sexist. I'd like to think Sailer is being ironic, but no, he's not.)